ATE322478T1 - METHOD FOR PURIFYING CAPROLACTAM - Google Patents

METHOD FOR PURIFYING CAPROLACTAM

Info

Publication number: ATE322478T1
Authority: AT; Austria
Prior art keywords: purifying caprolactam; caprolactam; purifying
Prior art date: 2002-11-13

Application number

AT03789024T

Other languages

German (de)

Inventor

Hermann Luyken

Andreas Ansmann

Christoph Benisch

Peter Bassler

Rolf-Hartmuth Fischer

Stefan Maixner

Johann-Peter Melder

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2002-11-13

Filing date

2003-11-11

Publication date

2006-04-15

2003-11-11 Application filed filed Critical

2006-04-15 Application granted granted Critical

2006-04-15 Publication of ATE322478T1 publication Critical patent/ATE322478T1/en

Links

JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 title 2

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/16—Separation or purification
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/02—Preparation of lactams
- C07D201/08—Preparation of lactams from carboxylic acids or derivatives thereof, e.g. hydroxy carboxylic acids, lactones or nitriles

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Other In-Based Heterocyclic Compounds (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

AT03789024T 2002-11-13 2003-11-11 METHOD FOR PURIFYING CAPROLACTAM ATE322478T1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE10253094A DE10253094A1 (en)	2002-11-13	2002-11-13	Purification of crude caprolactam comprises a three stage distillation process with feeding of the crude caprolactam and an inorganic acid having a b. pt. above the b. pt. of the caprolactam to a first distillation column

Publications (1)

Publication Number	Publication Date
ATE322478T1 true ATE322478T1 (en)	2006-04-15

Family

ID=32185663

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT03789024T ATE322478T1 (en)	2002-11-13	2003-11-11	METHOD FOR PURIFYING CAPROLACTAM

Country Status (16)

Country	Link
US (1)	US7501047B2 (en)
EP (1)	EP1565435B1 (en)
JP (1)	JP2006508955A (en)
KR (1)	KR20050075402A (en)
CN (1)	CN100349866C (en)
AR (1)	AR042008A1 (en)
AT (1)	ATE322478T1 (en)
AU (1)	AU2003293671A1 (en)
BR (1)	BR0316179A (en)
CA (1)	CA2505359C (en)
DE (2)	DE10253094A1 (en)
ES (1)	ES2262003T3 (en)
MX (1)	MXPA05004619A (en)
MY (1)	MY134410A (en)
TW (1)	TW200500337A (en)
WO (1)	WO2004043915A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP6030397B2 (en) *	2012-09-28	2016-11-24	ユニチカ株式会社	Caprolactam and production method thereof
TWI520944B (en)	2015-02-13	2016-02-11	中國石油化學工業開發股份有限公司	Method for preparing caprolactam and system thereof
CN109574929B (en) *	2017-09-29	2020-11-13	中国石油化工股份有限公司	Method for separating and purifying N-methylcaprolactam from light impurity components of cyclohexanone oxime gas-phase Beckmann rearrangement products
CN113750936B (en) *	2021-07-05	2022-09-09	福建永荣科技有限公司	Caprolactam's refined purification system
WO2026047099A1 (en)	2024-08-29	2026-03-05	Basf Se	A process for the purification of an aqueous stream comprising e-caprolactam

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US496941A (en)		1893-05-09		Wrench
DE1253716B (en)	1961-09-28	1967-11-09	Basf Ag	Process for purifying lactams
DE2435753A1 (en)	1974-07-25	1976-02-12	Basf Ag	MOLDING MATERIALS BASED ON BITUMES AND OLEFINCOPOLYMERIZATES
US4720328A (en) *	1981-06-26	1988-01-19	Akzona Incorporated	Method for removing impurities from caprolactam
DE3925575A1 (en)	1989-08-02	1991-02-07	Basf Ag	PROCESS FOR CONTINUOUS CLEANING OF CAPROLACTAM
DE4407222A1 (en) *	1994-03-04	1995-09-07	Basf Ag	Process for the recovery of caprolactam from oligo and / or polymers of caprolactam
DE4441962A1 (en)	1994-11-25	1996-05-30	Basf Ag	Process for the production of caprolactam
DE19500041A1 (en)	1995-01-03	1996-07-04	Basf Ag	Process for the continuous purification of crude caprolactam made from 6-aminocapronitrile
WO1997002228A1 (en)	1995-07-04	1997-01-23	Dsm N.V.	Process to prepare 5-formylvaleric acid
DE19529239A1 (en)	1995-08-09	1997-02-13	Basf Ag	Process for the continuous purification of 5-formylvaleric esters
DE19628805A1 (en)	1996-07-17	1998-01-22	Basf Ag	Process for the production of caprolactam from 6-aminocapronitrile
EP0860431A1 (en)	1997-02-19	1998-08-26	Dsm N.V.	Process to prepare e-caprolactam
EP0943608A1 (en)	1998-03-20	1999-09-22	Dsm N.V.	Process for the continuous purification of crude epsilon--caprolactam
BR9911231A (en)	1998-06-15	2001-03-06	Union Carbide Chem Plastic	Separation of epsilon caprolactam from isomers
FR2781796B1 (en) *	1998-07-28	2000-09-22	Rhone Poulenc Fibres	LACTAM DEHYDRATION PROCESS
DE10021192A1 (en)	2000-05-03	2001-11-08	Basf Ag	Process for the production of caprolactam
DE10021199A1 (en) *	2000-05-03	2001-11-08	Basf Ag	Process for the production of caprolactam
DE10021201A1 (en) *	2000-05-03	2001-11-08	Basf Ag	Process for the preparation of cyclic lactams
FR2809395B1 (en) *	2000-05-26	2002-07-19	Rhodia Polyamide Intermediates	LACTAM PURIFICATION PROCESS
MY127068A (en) *	2000-06-05	2006-11-30	Basf Ag	Removal of ammonia from solutions including caprolactam and ammonia
MXPA04004955A (en) *	2001-11-26	2004-08-11	Dsm Ip Assets Bv	Process for recovering caprolactam.

2002
- 2002-11-13 DE DE10253094A patent/DE10253094A1/en not_active Withdrawn
2003
- 2003-11-07 AR ARP030104107A patent/AR042008A1/en unknown
- 2003-11-10 MY MYPI20034293A patent/MY134410A/en unknown
- 2003-11-11 EP EP03789024A patent/EP1565435B1/en not_active Expired - Lifetime
- 2003-11-11 US US10/534,822 patent/US7501047B2/en not_active Expired - Fee Related
- 2003-11-11 BR BR0316179-0A patent/BR0316179A/en not_active Application Discontinuation
- 2003-11-11 AU AU2003293671A patent/AU2003293671A1/en not_active Abandoned
- 2003-11-11 KR KR1020057008585A patent/KR20050075402A/en not_active Withdrawn
- 2003-11-11 CN CNB2003801032141A patent/CN100349866C/en not_active Expired - Fee Related
- 2003-11-11 DE DE50302921T patent/DE50302921D1/en not_active Expired - Lifetime
- 2003-11-11 CA CA2505359A patent/CA2505359C/en not_active Expired - Fee Related
- 2003-11-11 WO PCT/EP2003/012558 patent/WO2004043915A1/en not_active Ceased
- 2003-11-11 JP JP2004550979A patent/JP2006508955A/en not_active Withdrawn
- 2003-11-11 MX MXPA05004619A patent/MXPA05004619A/en not_active Application Discontinuation
- 2003-11-11 AT AT03789024T patent/ATE322478T1/en not_active IP Right Cessation
- 2003-11-11 ES ES03789024T patent/ES2262003T3/en not_active Expired - Lifetime
- 2003-11-13 TW TW092131805A patent/TW200500337A/en unknown

Also Published As

Publication number	Publication date
MXPA05004619A (en)	2005-09-20
ES2262003T3 (en)	2006-11-16
CN100349866C (en)	2007-11-21
US7501047B2 (en)	2009-03-10
AU2003293671A1 (en)	2004-06-03
EP1565435A1 (en)	2005-08-24
MY134410A (en)	2007-12-31
TW200500337A (en)	2005-01-01
WO2004043915A1 (en)	2004-05-27
DE10253094A1 (en)	2004-05-27
CN1711242A (en)	2005-12-21
US20060090994A1 (en)	2006-05-04
EP1565435B1 (en)	2006-04-05
JP2006508955A (en)	2006-03-16
BR0316179A (en)	2005-09-27
DE50302921D1 (en)	2006-05-18
KR20050075402A (en)	2005-07-20
CA2505359A1 (en)	2004-05-27
AR042008A1 (en)	2005-06-08
CA2505359C (en)	2011-02-01

Legal Events

Date	Code	Title	Description
2008-02-15	REN	Ceased due to non-payment of the annual fee

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